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I15 Secondary hypertension

ICD-10-CM category I15 sits in Chapter 9 (Diseases of the circulatory system, I00-I99). It contains 5 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Billable codes in I15

CodeDescription
I15.0Renovascular hypertension
I15.1Hypertension secondary to other renal disorders
I15.2Hypertension secondary to endocrine disorders
I15.8Other secondary hypertension
I15.9Secondary hypertension, unspecified

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